Patent US5841317A successfully refreshed from Google Patents.
Patent US3491619A successfully refreshed from Google Patents.
US3491619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow transmission
Assignee: Voith Getriebe KG
•
Filing: 1967-08-07
•
Granted: 1970-01-27
•
Expires: 1987-08-07
Abstract
No abstract record available.
Inventors
- 👤 Rolf Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:43
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/06; F16H47/07; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19033; Y10T74/19037
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2213349A
Cited
US2142269A
Cited
FR891638A
Cited
CH238021A
Cited
FR992734A
Cited
US2568275A
Cited
US3169371A
Cited
US3176544A
Cited
US3373634A
Cited
US3383951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |